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Finding the Fourth Proportional to 243,186.44, 365,153 and 216,780.48

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Solution

The fourth proportional to 243,186.44, 365,153 and 216,780.48 is: 325,503.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,186.44 : 365,153 = 216,780.48 : x
  2. Step 2: Convert to fraction form
    243,186.44/365,153 = 216,780.48/x
  3. Step 3: Cross multiply
    243,186.44x = 365,153 × 216,780.48
  4. Step 4: Simplify right side
    243,186.44x = 79,158,042,613.44
  5. Step 5: Solve for x
    x = 79,158,042,613.44/243,186.44
  6. Step 6: Final answer
    x = 325,503.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.